Actually a while back they extended the maximum /wait from 30 to 60 but a 60 second wait is useless... if you use another macro after it it will just cancel the first macro... let's say for instance you had.

/ja "Provoke"
/wait 15
/p message
/wait 15
/p voke ready

and you used boost between the time you voked and the time voke was back up... the /p messages after you hit your boost macro would never occur as they were cancelled basically.

Lionx is giving good advice on how to check it though with /recast "Ability" ... sadly there is nothing to remind you to hit a macro or let you know it's ready which I wish there was... I always wish I could bind it to tell me when steal is up again with my THF.